baber/WOPTO huggingface dataset:
Patent CA-2251882-A1 (CA)
Title: Method and apparatus for diffusive transfer between immiscible fluids
Inventor: HARPER MICHAEL JONATHAN
IPC: B01D61/24
Filed: 1997-04-15
Abstract: Apparatus for carrying out a process between first and second immiscible fluids, comprises first and second channels (2, 4) defining flow paths (24), for permitting fluid flow of respective first and second immiscible fluids therethrough. Portions of the flow paths are disposed close to, or adjacent to, one another and communicate with one another to define a region (3) in which, in use, a stable interface (6) between the fluids is formed. One or more dimensions of the region (3) are varied along the length of the interface (6) in a direction of fluid flow to compensate for variation in the properties of the fluids during the carrying out of the process and thereby maintain stability of the interface (6).
Patent CA-2252114-A1 (CA)
Title: Ink roller assembly
Inventor: KESSLER JOHN R
IPC: B41F31/22
Filed: 1998-11-25
Abstract: Disclosed are various embodiments of an ink roller assembly with a capillary ink metering unit and a surrounding porous ink retaining sleeve, wherein the unit is comprised of a pair of capillary sections connected to each other and wherein capillary sections include a hollow shaft and discs with intervening ink capillary chambers interconnected by passages. In another embodiment, a capillary ink metering unit includes discs on a solid shaft, wherein there are passages interconnecting capillary chambers.
Patent CA-2253998-A1 (CA)
Inventor: WEISBIER PETER
IPC: G07B15/00
Filed: 1998-11-26
Abstract: The invention relates to a waiting time prediction system for visualizing waiting times until the arrival of at least one vehicle (2), in particular a vehicle of the public transit system, at at least one station stop (5). Hardware and/or software expenses are minimized by including the following components: a first device for determining position data of the vehicle (2), a second device for calculating the remaining expected driving time until the arrival of the vehicle (2) at the station stop (5) based on the measured position data of the vehicle (2) and the known coordinates of the station stop (5), and first and second transmissionmeans for transmitting information from the first device to the second device and from the second device to a station stop display (4), wherein the station stop display (4) can be controlled by this second transmission means to indicate the waiting time.
Patent CA-2254990-A1 (CA)
Title: Boiler system ignition sequence detector and associated methods of protecting boiler systems
Inventor: KEEGAN PATRICK J
IPC: F23N5/20
Filed: 1998-11-27
Abstract: An event detector and associated methods of protecting systems provide convenient and economical safety features. In a described embodiment, an ignition sequence detector for a boiler system has a microprocessor which is programmed so that an ignition control module of the boiler system is deprived of primary power when an improper sequence of events occurs. The ignition sequence detector includes multiple event detectors interconnected to the microprocessor, and is configured so that it is usable in high RFI environments.
Patent CA-2255861-A1 (CA)
Title: Iron base powder mixture for powder metallurgy excellent in fluidity and moldability, method of production thereof, and method of production of molded article by using the iron base powder mixture
Inventor: OGURA KUNIAKI
IPC: B22F1/10
Filed: 1998-03-18
Abstract: An iron base powder mixture capable of providing excellent fluidity at room temperature and in a warm state and reducing an extruding force in molding and having improved moldability; a method of production of this mixture; and a method of production of a high density molded article by using the mixture. The iron base powder mixture contains iron base powder, a lubricant and alloying powder, and at least one of the components is coated with at least one surface treating agent selected from the group consisting of organoalkoxysilanes, organosilazanes, titanate coupling agents and fluorocoupling agents. The iron base powder mixture is press-molded at a temperature higher than the lowest melting point but lower than the highest melting point of the lubricants contained in the mixture.
Patent CA-2258044-A1 (CA)
Title: Muscarinic antagonists
Inventor: LOWE DEREK B
IPC: A61K31/506
Filed: 1997-06-26
Abstract: Di-N-substituted piperazine or 1,4di-substituted piperidine compounds in accordance with formula (I) (including all isomers, salts, esters, and solvates), wherein Q, n, R, R1, R2, R3, R4, R21, R27, R28, X, and Z are as defined herein are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease. Pharmaceutical compositions and methods of preparation are also disclosed. Also disclosed are synergistic combinations with acetylcholinesterase inhibitors of compounds capable of enhancing acetylcholine release and having the above formula.
Patent CA-2259217-A1 (CA)
Title: Quinolone carboxylic acids substituted by 7-(3-vinyl-1,4-piperazine-1-yl)
Inventor: SCHEER MARTIN
IPC: C07D401/04
Filed: 1997-06-16
Abstract: The invention concerns new quinolone carbonic acids substituted by 7-(3-vinyl-1,4-piperazine-1-yl) of general formula (I) in which R1 stands for hydrogen or alkyl optionally substituted by hydroxy, methoxy, amino, methylamino or dimethylamino with 1 to 4 carbon atoms or (5-methyl-2-oxo-1,3-dioxol-4-yl)-methyl; R2 stands for hydrogen or fluorine when at the same time R4 is a different hydrogen or fluorine, or stands for amino, methyl or vinyl; R3 stands for hydrogen, benzyl, alkyl with 1 to 3 carbon atoms, groups of -CH=CH-COOR5, -CH2CH2-COOR5, -CH2CH2CN, -CH2CH2COCH3, -CH2COCH3, in which R5 stands for methyl or ethyl or stands for a group of the general structure R6-(NH-CHR7-CO)n- in which R6 stands for hydrogen, alkyl with 1 to 3 carbon atoms or stands for the -COO-tertiary butyl group, R7 stands for hydrogen, alkyl with 1 to 4 carbon atoms, hydroxyalkyl with 1 or 2 carbon atoms, CH2-phenyl, aminoalkyl or thioalkyl with 1 or 2 carbon atoms and n = 1 or 2; and R4 stands for hydrogen or flourine when R2 stands for amino, methyl or vinyl or stands for chlorine, methoxy, difluoromethoxy, CN or ethinyl. The invention also concerns a method for their use and their use in antibacterial substances.
Patent CA-2259802-A1 (CA)
Title: Vertical cavity surface emitting laser
Inventor: OSCARSSON VILHELM
IPC: H01S5/183
Filed: 1999-01-21
Abstract: A top surface emitting vertical cavity laser with enhanced power handling capacity. The laser provides a patterned top electrode for uniformly injecting applied current to the active area. The diameter of the electrode relative to the vertical distance between it and the active layer is reduced by patterning. The result is an improved laser with significant power output.
Patent CA-2260358-A1 (CA)
Title: Sealed lateral wellbore junction assembled downhole
Inventor: BOWLING JOHN S
IPC: E21B7/08
Filed: 1999-01-26
Abstract: Apparatus and methods are provided for completing a wellbore junction. In one embodiment described herein, a lateral wellbore junction is sealed utilizing an apparatus assembled within the well. The apparatus may include multiple housings which are engaged with each other to form a sealed assembly with flow passages extending into the lateral wellbore, and upper and lower portions of a parent wellbore. Associated sealing devices and flexible couplings are also provided.
Patent CA-2260552-A1 (CA)
Inventor: CHEN FENG-YUAN
IPC: E06B9/386
Filed: 1999-01-28
Abstract: A method of fabricating bamboo slats for bamboo blinds comprises the steps of : i) selecting bamboo wood from a bamboo cane, and cutting the selected bamboo wood into bamboo strips subject to a desired length and a desired width ; ii) removing the skin and joints from both sides of the bamboo strips, and boiling the bamboo strips in a hydrogen peroxide solution : iii) splicing the bamboo strips into bamboo slats of a desired thickness ; iv) coating the bamboo strips with a bonding glue, and using a pneumatic press to bond said bamboo strips ; v) splicing the bamboo plates into bamboo slats of a predetermined thickness, and air pressing the bamboo slats, and grinding the bamboo slats by blasting ; vi) coating the bamboo slats with a priming, and grinding the bamboo slats, and coating the bamboo slats with a face coating;  vii) punching holes on the bamboo slats for inserting pull cord, and assembling the pull cord into a Venetian blind to be a set of slats.
Patent CA-2261639-A1 (CA)
Title: Programmable metallization cell structure and method of making same
Inventor: WEST WILLIAM C
IPC: G02F1/19
Filed: 1997-05-28
Abstract: A programmable metallization cell (10) ("PMC") comprises a fast ion conductor such as a chalcogenide-metal ion and a plurality of electrodes (13 and 14) (e.g., an anode and a cathode) disposed at the surface of the fast ion conductor (12) and spaced a set distance apart from each other. Preferably, the fast ion conductor comprises a chalcogenide with Group IB or Group IIB  metals, the anode comprises silver, and the cathode comprises aluminum or other conductor. When a voltage is applied to the anode and the cathode, a non-volatile metal dendrite grows from the cathode along the surface of the fast ion conductor towards the anode. The growth rate of the dendrite is a function of the applied voltage and time. The growth of the dendrite may be stopped by removing the voltage and the dendrite may be retracted by reversing the voltage polarity at the anode and cathode. Changes in the length of the dendrite affect the resistance and capacitance of the PMC. The PMC may be incorporated into a variety of technologies such as memory devices, programmable resistor/capacitor devices, optical devices, sensors, and the like. Electrodes additional to the cathode and anode can be provided to serve as outputs or additional outputs of the devices in sensing electrical characteristics which are dependent upon the extent of the dendrite.
Patent CA-2261801-A1 (CA)
Inventor: BARNETTE AUDICE WENDELL JR
IPC: G01L5/00
Filed: 1996-07-30
Abstract: A method for enhancing the measurement accuracy of a tire uniformity machine by combining signals generated by supplementary load cells with signals generated by corresponding measuring load cells to vibration signals generated by the tire uniformity machine.
Patent CA-2262005-A1 (CA)
Inventor: LEVI SHEM-TOV
IPC: H01G/
Filed: 1996-07-25
Abstract: A phase control device, for providing a plurality of phase values, for utilisation by any system having a number of input/output ports with signals requiring control of their relative phases. The phase control device is constructed from phase shift elements electrically connected to a system of electrically interconnected switches separated off from the phase shift elements. The result is a reduction in the number of phase shift elements and switches as compared to conventional phase shifters and a simplification of the resulting architecture, a feature of significant importance in chip miniaturization.
Patent CA-2262893-A1 (CA)
Inventor: CASSELS FREDERICK
IPC: C07K16/12
Filed: 1997-08-01
Abstract: L'invention concerne des séquences d'acides aminés provenant d'un peptide consensus de la formule: VEKNITVTASVDPTIDLLQADGSALPSAVALTYSPA (Séq. #1). On a essayé huit peptides mer provenant du peptide consensus et dirigés contre un anticorps dirigé contre le peptide consensus. Des études relatives à un anticorps dirigé contre des protéines dénaturées, provenant d'organismes naturels produisant la famille de protéines, ont été également utiles et ont montré la valeur particulière de certaines séquences. On a identifié ainsi une séquence de la formule ASVDPTIDLLQA (Séq. #2). Une séquence agrandie de la formule TVTASVDPTIDLLQAD (Séq. #3) s'est révélée particulièrement intéressante, de même que des séquences intermédiaires, telles que VTASVDPTIDLLQAD (Séq. #4), TASVDPTIDLLQAD (Séq. #5), et TASVDPTIDLLQA (Séq. #6), car elles constituent des sites de fixation d'anticorps dirigés contre les protéines dénaturées.
Patent CA-2266066-A1 (CA)
Title: Multi-axial bone screw assembly
Inventor: SHERMAN MICHAEL C
IPC: A61B17/58
Filed: 1997-09-24
Abstract: A multi-axial bone screw assembly (10) includes a bone screw (11) having a partially spherical head (22). The bone screw head (22) is truncated at an upper surface (24) in which a tool receiving recess (25) is defined. The assembly includes a receiver member (12) including a central bore (34) that defines a tapered recess (35) to receive a contracting collet (13) carrying the head (22) of the bone screw (11). The bore (34) of the receiver member also defines a channel (33) communicating with the recess and configured to receive a spinal rod (R) therein. A portion (37) of the channel is threaded to receive a set screw (14) above the rod. The assembly (10) also includes a contracting collet (13) disposed between the rod (R) and the head (22) of the bone screw (11). The collet (13) defines a partially spherical recess (45) to receive the head (22) of the bone screw, and includes deflectable fingers (50) that substantially surround the screw head. As the set screw (14) is tightened into the receiver member (12), the set screw (14) compresses the rod (R) against the collet (13), which presses the collet (13) into the tapered recess (35) of the receiver member (12), thereby deflecting the fingers (50) of the collet against the bone screw head.
Patent CA-2267292-A1 (CA)
Title: Low profile connector
Inventor: LEMKE TIMOTHY A
IPC: H01R43/02
Filed: 1997-10-09
Abstract: A low profile board-to-board connector system is disclosed. Retention areas in the respective mating connectors (20, 52) are utilized to receive portions of opposed mating contact terminals (28, 72). Utilization of centralized retention structures allow optimum placement of recessed areas (44, 46) to receive distal portions (82) of mating contact terminals (72). These centralized retention structures (48, 68) also allow maximization of contact beam length in the limited available space, so that favorable contact characteristics are achieved. Contact insertion/retention features are positioned at intermediate locations of the contact beams, for enhanced contact retention and improved beam performance. Terminal contacts may be retained in a passage by projections (48, 68) that engage openings (96) formed in the retention portion of the contact terminal.
Patent CA-2268014-A1 (CA)
Inventor: MARKAU URSULA
IPC: C12N1/19
Filed: 1997-10-01
Abstract: A DNA polymerase from a thermophilic eubacterium is provided. The DNA  polymerase shows magnesium ion dependent reverse transcriptase activity and 3'-5' exonuclease activity. The invention also includes recombinant plasmids and transformed host cells capable of producing the enzyme. The enzyme is classified into class EC 2.7.7.7., a DNA nucleotidyl transferase DNA-directed type.
Patent CA-2268101-A1 (CA)
Title: Improved ultrasonic tieing tool
Inventor: BARTHOLOMEW PAUL J
IPC: B29C65/08
Filed: 1998-08-12
Abstract: An ultrasonic tieing tool (200) for installation of a tape (240) about a bundle of elongate articles (140). The tool includes an ultrasonic horn (76) wherein the welding tip (78) is movable between a first position for welding of a tape to secure the tensioned loop about the plurality of articles and a second position wherein the welding tip is translated a distance from the first position to effect cutting of the tensioned loop from the stock of tape and to tack weld the loose cut end to the underlying tape of the loop to eliminate any protruding sharp edges. The tool additionally includes a belt drive mechanism (247) for advancing the tape to the jaw assembly (220) and for tensioning the tape following looping of the tape about the outside.
Patent CA-2268937-A1 (CA)
Title: Bavette presentant des bords lateraux concaves
Inventor: JACKSON BEVERLY ANN JULIAN
IPC: A41B13/10
Filed: 1997-09-22
Abstract: La présente invention concerne une bavette présentant une ouverture pour le cou, généralement symétrique longitudinalement et asymétrique latéralement, ainsi que des bords latéraux concaves. L'ouverture, généralement plane, peut prendre la forme d'une goutte d'eau. Les bords latéraux concaves permettent le mouvement des bras du porteur de la bavette, laquelle peut également comprendre des éléments de fixation autour de la taille.
Patent CA-2269812-A1 (CA)
Inventor: KURPPA LASSE JUHANI
IPC: A23L27/40
Filed: 1997-01-20
Abstract: L'invention concerne l'utilisation de flavonoïdes, soit en tant que substances aromatiques, soit en tant que substituts de sel. On mélange plusieurs flavonoïdes provenant, par exemple, de l'oignon, de la pomme ou du thé, afin d'obtenir une composition. On peut utiliser cette préparation de flavonoïdes en tant que substance aromatique et en tant que substitut du sel en cuisine ménagère, ainsi que dans l'industrie alimentaire. L'augmentation de la prise de flavonoïdes limite les risques de maladies coronariennes.
Patent CA-2270975-A1 (CA)
Title: Stabilized sustained release tramadol formulations
Inventor: HUANG HUA-PIN
IPC: A61K9/42
Filed: 1998-07-02
Abstract: A stabilized sustained release oral solid dosage form which includes an effective amount of tramadol or a pharmaceutically acceptable salt thereof dispersed in a matrix of a hydrophobic material comprising a wax-like substance which was melted or softened during the preparation of the matrix, is cured at a temperature from about 35 ~C to about 65 ~C for a time period from about 4 to about 72 hours, such that the formulation, when subjected to in vitro dissolution after exposure to accelerated storage conditions of at least one month at 40 ~C/75 % RH, releases an amount of tramadol which does not vary at any given dissolution time point by more than about 20 % of the total amount of tramadol released when compared to in vitro dissolution conducted prior to subjecting the dosage form to the accelerated storage conditions.
Patent CA-2272274-A1 (CA)
Title: Process for zeolite catalyst reactivation
Inventor: BARTHOLIC DAVID B
IPC: B01J38/60
Filed: 1997-11-24
Abstract: A spent zeolite-containing hydrocarbon cracking catalyst is treated by regenerating it to remove carbonaceous deposits. A portion of the regenerated catalyst is withdrawn from the circulating catalyst inventory of a hydrocarbon processing unit and slurried with a liquid containing an activating agent to solubilize and/or dislodge contaminants which block the pores of the zeolite and adversely affect the activity of the catalyst. The slurry is agitated to dissolve or dislodge the contaminants from the zeolite pores, and the agitated slurry, without being permitted to settle, is transferred to a fluidized drying zone where the liquid and solubilized and/or dislodged contaminants are removed from the treated catalyst which has a level of cracking activity higher than that of the catalyst in the circulating catalyst inventory.      The treated catalyst is then recycled to the unit and contacted with a hydrocarbon feedstock under cracking conditions.
Patent CA-2273039-A1 (CA)
Title: Diagnostic system
Inventor: SUNDREHAGEN ERLING
IPC: G01N21/84
Filed: 1998-01-15
Abstract: There is described a diagnostic system comprising a desk-top, flat-bed optical colour scanner (101) which scans a substrate, such as a urine stick (107), which has been dipped in a container of analyte (105). The substrate (107) carries an image result generated by a chemical diagnostic assay and the scanner (101) generates a digitised record of the image. A personal computer (103) coupled to the scanner (101) is arranged to perform a colour analysis of the image by analysis of the digitised record and provides a quantified result for the diagnostic assay.
Patent CA-2273600-A1 (CA)
Title: Edge vehicle for a communications network
Inventor: NORDIN RONALD ALEX
IPC: H04L12/54
Filed: 1999-06-02
Abstract: A communications for interconnecting standard twisted pair loop subscriber lines to a packet network without traditional local digital switches. The packet transport edge vehicle comprises a plurality of access shelves including means for converting synchronous traffic to asynchronous traffic within each line interface circuit. The converted traffic is delivered via high speed packet data links to a data subsystem where the packets are routed to an appropriate end destination either in a packet data network, such as the internet, or to the traditional public switched telephone network.
Patent CA-2275729-A1 (CA)
Title: Process of treating metallic surfaces
Inventor: SEBRALLA LARS
IPC: C23C22/78
Filed: 1997-12-18
Abstract: The invention relates to a method for treating metallic surfaces consisting of zinc, magnesium or aluminium or of the alloys of zinc, magnesium or aluminium, to which lacquer, coatings of plastic material, paint, sealants or adhesives are applied after treatment. The treatment of the metallic surfaces takes place at between 10 °C and 100 °C by immersion, spraying or rolling with an aqueous solution.  The solution has a pH of between 2 and 13 and contains one or more compounds of the type XYZ at a concentration of between 10-5 and 1 mol/l. Y is an organic group containing between 2 and 50 C atoms and has a straight-chain structure. X is a COOH, HSO3, HSO4, (OH)2PO, (OH)2PO2, (OH)(OR')PO or (OH)(OR')PO2 group. Z is a OH, SH, NH2, NHR', CN, CH=CH2, OCN, epoxy, CH2=CR"-COO, acrylamide, COOH, (OH)2PO, (OH)2PO2, (OH)(OR')PO or (OH)(OR')PO2 group. R' is an alkyl group with between 1 and 4 C atoms.  R" is an H atom or an alkyl group with between 1 and 4 C atoms. Groups X and Z  are each bonded to group Y in their final positions.
Patent CA-2277269-A1 (CA)
Title: Method for transfer-filling of liquefied gases
Inventor: IMOTO MASAYOSHI
IPC: F17C7/02
Filed: 1998-01-08
Abstract: The present invention provides a method for transfer-filling a liquefied gas by drawing out a nonazeotropic mixture stored in a first container and containing at least two liquefied gases differing in boiling point as essential components from a liquid phase thereof and transfer-filling the mixture into a second container, characterized in that the method comprises filling the following supplement liquid (A) or supplement gas (B) into said first container in an amount making up for a portion of the capacity of said first container that is equal to the decrease in volume of the liquid phase of said nonazeotropic mixture resulting from transfer-filling: (A) a supplement liquid which is the liquid phase of a liquefied gas mixture having the same composition as that of the nonazeotropic mixture stored in the first container; (B) a supplement gas which is (i) (a) a gaseous phase of a liquefied gas mixture having the same composition as that of the nonazeotropic mixture stored in the first container or (b) a gaseous phase composed of at least one of component of said nonazeotropic mixture and containing the component having the lowest boiling point of all the components of said mixture in a proportion larger than the proportion thereof in said nonazeotropic mixture or (ii) a compressed gas. The method of the invention drastically reduces the change, resulting from transfer-filling, in the composition of a nonazeotropic refrigerant mixture which is used as a working fluid in the vapor compression type refrigerating cycle.
Patent CA-2277344-A1 (CA)
Inventor: VANDERPOOL CLARENCE D
IPC: C09K11/61
Filed: 1999-07-14
Abstract: An electroluminescent phosphor containing an effective amount of bismuth to increase the half life of the phosphor compared to the half life of the phosphor without the bismuth. The phosphor is produced by the method comprising the steps of preparing the electroluminescent phosphor; adding granular, elemental bismuth to the bottom of a quartz reaction vessel; covering the bismuth with a layer of quartz wool;  placing the phosphor on top of the quartz wool; evacuating the reaction vessel to about mm Hg and sealing the vessel; and heating the vessel to between about 500 t0 700°C for about 24 to 72 hours.